<template>
  <div class="app-container">课程列表
    <!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="courseQuery.title" placeholder="课程名称"/>
      </el-form-item>

      <!-- <el-form-item>
        <el-select v-model="courseQuery.status" clearable placeholder="课程状态">
          <el-option :value="Normal" label="已发布"/>
          <el-option :value="Draft" label="未发布"/>
        </el-select>
      </el-form-item> -->
      <el-form-item>
        <el-select v-model="courseQuery.status" clearable placeholder="课程状态">
          <el-option value="Normal" label="已发布"/>
          <el-option value="Draft" label="未发布"/>
        </el-select>
      </el-form-item>

      <el-button dtype="primary" icon="el-icon-search" @click="getList()">查询</el-button>
      <el-button type="default" @click="resetData()">清空</el-button>
    </el-form>
        <!-- 表格 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      element-loading-text="数据加载中"
      border
      fit
      highlight-current-row>

      <el-table-column
        label="序号"
        width="70"
        align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="title" label="课程名称" align="center" width="400" />

      <el-table-column label="课程状态" align="center" width="80" >
        <template slot-scope="scope">
          {{ scope.row.status==='Draft'?'未发布':'已发布' }}
        </template>
      </el-table-column>

      <el-table-column prop="price" label="课程销售价格" align="center" width="180" />

      <el-table-column prop="lessonNum" label="总课时" align="center"  width="170"/>

      <el-table-column prop="buyCount" label="销售数量" align="center" width="170" />

      <el-table-column label="操作" width="400"  align="center">
        <template slot-scope="scope">

          <router-link :to="'/course/info/'+ scope.row.id" @click="scopetCoures()">
            <el-button type="primary" size="mini" icon="el-icon-edit">编写课程基本信息</el-button>
          </router-link>
          <router-link :to="'/course/chapter/'+ scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit">编写课程大纲</el-button>
          </router-link>

          <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeDataById(scope.row.id)">删除</el-button>

        </template>
      </el-table-column>
    </el-table>
       <!-- 分页 -->
    <el-pagination
      :current-page="page"
      :page-size="limit"
      :total="total"
      style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper"
      @current-change="getList"
    />
    
  </div>
</template>
<script>
import course from '@/api/edu/course'

export default {
    data(){
        return{
            list:null,
            page:1,
            limit:5,
            total:0,
            courseQuery:{}
   
        }
    },
    created(){
        this.getList()    
    },
    methods:{
      
        //获取列表
        getList(page =1){
          this.page = page
            course.pageCourseCondition(this.page,this.limit,this.courseQuery)
            .then(response=>{
                // console.log(response)
                this.list = response.data.items
                this.total = response.data.total
                console.log(this.list)
                console.log(this.total)
            })
            .catch(error => { console.log(error)})
        },
        //清空
        resetData(){
                this.courseQuery = {},
                this.getList()
        },
        //删除课程
        removeDataById(id){
            // alert(id);
            // teacher.deleteTeacherid(id)
            this.$confirm('此操作将永久删除讲师记录, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).then(() => {
                //删除操作
                course.deleteCoure(id)
                .then(response => {
                    this.$message({
                            type: 'success',
                            message: '删除成功!'
                            });
                    //刷新界面
                    this.getList()
                })
            }).catch(() => {
                this.$message({
                    type: 'info',
                    message: '已取消删除'
                });
            })
            
        }
        //
    }

}
</script>

